Concealed door handle power supply circuit capable of continuously supplying power

Abstract

The utility model provides a concealed door handle power supply circuit capable of continuously supplying power. The concealed door handle power supply circuit comprises a battery, a voltage stabilizing circuit, a transient suppression diode, an energy storage unit, a microcontroller unit, a driver, a motor, a charging and protecting circuit, an electric shock rod control system and an external power interface. By adding the super capacitor and related circuits, the problem that the hidden door handle of the traditional new energy automobile cannot be opened due to power failure is solved, and under the failure condition, the super capacitor can continuously discharge to supply power to the hidden door handle control circuit, so that the hidden door handle control circuit can normally work in a failure mode. The automobile door handle is mainly used in the technical field of automobile door handles.

Description

TECHNICAL FIELD

[0001] The technical scheme relates to the technical field of door handles, and particularly relates to a hidden door handle power supply circuit capable of realizing sustainable power supply. BACKGROUND

[0002] The hidden door handle is a door handle with unique design, and is characterized by "concealment", that is, being integrated with a door surface or a vehicle body and being unobtrusive or difficult to detect. The hidden door handle is usually designed without a handle or embedded in the door surface or the vehicle body and matched with the materials of the door surface or the vehicle body, so that the hidden door handle is almost invisible when the door is closed. The design is beautiful and simple, and can improve the overall space or vehicle texture. In an emergency, such as a fire or an earthquake, people may need to quickly escape from a building. At this time, the hidden door handle may increase the difficulty of escape, because people need to find and operate the door handle to open the door. Similarly, for a vehicle, a passerby or a firefighter who is not familiar with the hidden door handle may have difficulty in opening the door in an emergency. CONTENT OF THE UTILITY MODEL

[0003] The utility model provides a hidden door handle power supply circuit capable of realizing sustainable power supply, so as to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] A hidden door handle power supply circuit capable of realizing sustainable power supply is provided, and the hidden door handle power supply circuit comprises a battery, a voltage stabilizing circuit, a transient suppression diode, an energy storage unit, a microcontroller unit, a driver, a motor, a charging and protection circuit, a shock rod control system and an external power supply interface.

[0005] The battery is used to provide initial electric energy, the voltage stabilizing circuit is connected with the battery and is used to perform voltage stabilization treatment on the electric energy provided by the battery, the transient suppression diode is connected with the voltage stabilizing circuit and is used to protect the circuit from damage caused by transient overvoltage, and the energy storage unit is connected with the voltage stabilizing circuit and is used to store electric energy.

[0006] The microcontroller unit is connected with the energy storage unit and is used to control the operation of the entire power supply circuit, the driver is connected with the microcontroller unit, the motor is connected with the driver and is used to realize the pushing action of the door handle, and the external power supply interface is connected with the voltage stabilizing circuit and the energy storage unit, and the external power supply interface is used to provide external electric energy for the entire circuit when the battery has insufficient electric energy.

[0007] The charging and protection circuit is connected with the external power supply interface and the battery, and is used to ensure the safe charging of the battery and prevent overcharging, and the shock rod control system is connected with the microcontroller unit, is used to receive an external input signal, and performs function control on the shock rod according to the control instruction of the microcontroller unit.

[0008] As a further improvement of the above technical solution, the energy storage unit is a super capacitor.

[0009] As a further improvement of the above technical solution, the energy storage unit is further connected with a voltage balancing and protection circuit, which is used to ensure the voltage stability of the energy storage unit during the charging and discharging process, and prevent overcharging or overdischarging.

[0010] As a further improvement of the above technical solution, the driver is provided with a high-frequency high-voltage boost circuit, which is used to boost the power provided by the battery or super capacitor to a voltage range suitable for the operation of the motor.

[0011] As a further improvement of the above technical solution, the microcontroller unit is further provided with an input interface, which is used to receive external input signals and control the circuit according to the external input signals.

[0012] As a further improvement of the above technical solution, the electric shock rod control system further comprises an output circuit, which is used to convert the control instructions into electrical signals and drive the electric shock rod to work.

[0013] The beneficial effects of the present application are: by increasing the super capacitor and the related circuit, the problem of the traditional new energy vehicle hidden door handle being unable to open due to power failure is solved, and in the case of failure, the super capacitor will continue to discharge, providing power to the hidden door handle control circuit, so that it works normally in the fault mode. The technical solution has large capacity, fast charging speed, high efficiency, long service life, green environmental protection, high safety, etc. The present application is mainly used in the field of door handle technology. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the technical solutions of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the technical solutions of the present application, and do not constitute a limitation on the technical solutions of the present application.

[0015] Figure 1 It is a structure diagram of a sustainable power supply hidden door handle power supply circuit. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the present application will be further described in detail below with reference to the drawings and embodiments.

[0017] REFERENCE Figure 1 , Figure 1 It is a structure diagram of a sustainable power supply hidden door handle power supply circuit.

[0018] A hidden door handle is a unique design of door handle characterized by "hiddenness", that is, it is integrated with the door surface or vehicle body and is not conspicuous or difficult to detect. The hidden door handle usually adopts a handle-free or embedded design, which matches the door surface or vehicle body material, so that it is almost invisible when closed. This design is not only beautiful and simple, but also can improve the overall space or vehicle texture. In emergency situations such as fire or earthquake, people may need to escape from the building quickly. At this time, the hidden door handle may increase the difficulty of escape, because people need to find and operate the door handle to open the door. Similarly, for cars, pedestrians or firefighters who are not familiar with the hidden door handle may have difficulty opening the car door in an emergency.

[0019] A sustainable power supply hidden door handle power supply circuit is provided, comprising: a battery, a voltage stabilizing circuit, a transient suppression diode, an energy storage unit, a microcontroller unit, a driver, a motor, a charging and protection circuit, a stun rod control system and an external power supply interface.

[0020] The battery is used to provide initial electrical energy; the voltage stabilizing circuit is connected with the battery for voltage stabilizing treatment of the electrical energy provided by the battery; the transient suppression diode is connected with the voltage stabilizing circuit for protecting the circuit from transient overvoltage damage; the energy storage unit is connected with the voltage stabilizing circuit for storing electrical energy. The working principle of the transient suppression diode is based on the avalanche breakdown effect of the PN junction. When the applied voltage exceeds the breakdown voltage of the transient suppression diode, the PN junction quickly enters the avalanche breakdown state, forming a low impedance path to quickly conduct the transient voltage to ground, thereby protecting electronic devices from voltage transient impact. Avalanche breakdown effect refers to that in the PN junction, when the applied voltage exceeds its breakdown voltage, the electrons and holes in the PN junction accelerate under the action of the electric field, collide with the lattice atoms, and generate more electron-hole pairs. These newly generated electron-hole pairs continue to accelerate in the electric field, forming a chain reaction, causing the current in the PN junction to increase sharply, forming avalanche breakdown.

[0021] The microcontroller unit is connected with the energy storage unit for controlling the operation of the entire power supply circuit. The driver is connected with the microcontroller unit; the motor is connected with the driver for realizing the pushing action of the door handle; the external power supply interface is connected with the voltage stabilizing circuit and the energy storage unit, and the external power supply interface is used to provide external electrical energy for the entire circuit when the battery power is insufficient.

[0022] The charging and protection circuit is connected with the external power supply interface and the battery for ensuring the safe charging of the battery and preventing overcharging; the stun rod control system is connected with the microcontroller unit for receiving external input signals and controlling the function of the stun rod according to the control instructions of the microcontroller unit.

[0023] As a further improvement of the above technical solution, in some further specific examples, the energy storage unit is a super capacitor. A super capacitor is a power supply with special performance between traditional capacitors and batteries. It mainly relies on double-layer and redox pseudo-capacitance to store electric energy, and no chemical reaction occurs during energy storage, so it has reversibility and can be repeatedly charged and discharged hundreds of thousands of times. Its working principle is based on the principle of charge separation and electric field storage. Specifically, a super capacitor is composed of two electrodes and an electrolyte. When an external power source is connected to the two electrodes of the super capacitor, the positive electrode attracts negative charges and the negative electrode attracts positive charges, causing the ions in the electrolyte to begin to move towards the electrodes, forming charge separation. During charging, the ions in the electrolyte form a charge layer on the surface of the electrode, generating an electric field for storing electric energy. When discharging, the external circuit connects the current to the two electrodes of the capacitor, and the charges begin to flow out of the electrode, and the ions in the electrolyte return to a uniform distribution state.

[0024] As a further improvement of the above technical solution, in some further specific examples, the energy storage unit is also connected with a voltage balancing and protection circuit, which is used to ensure the voltage stability of the energy storage unit during charging and discharging, and prevent overcharging or overdischarging.

[0025] As a further improvement of the above technical solution, in some further specific examples, a high-frequency high-voltage boost circuit is provided in the driver, which is used to boost the electric energy provided by the battery or super capacitor to a voltage range suitable for the operation of the motor. The working principle of the boost circuit is mainly to generate high-voltage pulses using the periodic change of the alternating power source, and then store and filter through inductance and capacitance, finally output the required high voltage. Specifically, when the input power is applied to the boost circuit, the switching elements (such as triodes or MOS tubes) in the circuit will be turned on and off periodically. During the switch-on period, the input voltage charges the capacitor through the inductance, and at the same time the inductance stores energy. During the switch-off period, due to the current holding characteristic of the inductance, it will continue to provide current to the capacitor, causing the voltage across the capacitor to rise, thereby achieving the effect of voltage boosting.

[0026] As a further improvement of the above technical solution, in some further specific examples, the microcontroller unit is further provided with an input interface, the input interface is used for receiving an external input signal, and the circuit is controlled according to the external input signal. The microcontroller is a single-chip microcomputer that integrates the main parts of a microcomputer on a chip. It integrates computing power, memory units, and input / output (I / O) interfaces on a small chip, can perform specialized tasks, and is usually used for real-time control of complex systems. The working principle of the microcontroller is based on its internal clock and instruction set. When the power is turned on, the clock of the microcontroller starts to work, providing a stable clock signal for the CPU. The CPU reads instructions from the memory according to the clock signal and executes them. The instruction set defines various operations that the microcontroller can perform, such as data operations, logical judgments, input / output control, etc.

[0027] As a further improvement of the above technical solution, in some further specific examples, the electric shock rod control system further includes an output circuit, the output circuit is used for converting the control instruction into an electric signal, and driving the electric shock rod to work.

[0028] Although the description of the present application has been quite detailed and particularly described with respect to the described embodiments, it is not intended to be limited to any of these details or embodiments or any special embodiment, but should be considered to effectively cover the intended scope of the present application by referring to the appended claims, taking into account the prior art to provide a broad interpretation of the claims. In addition, the present application is described above in embodiments that the inventor can foresee, the purpose of which is to provide a useful description, and non-essential modifications to the present application that have not yet been foreseen can still represent equivalent modifications to the present application.

Claims

1. A self-sustaining concealed door handle power supply circuit, characterized in that, The application relates to a power supply circuit for a door handle, which comprises a battery, a voltage stabilizing circuit, a transient suppression diode, an energy storage unit, a microcontroller unit, a driver, a motor, a charging and protection circuit, a shock rod control system and an external power supply interface. The battery is used for providing initial electric energy. The voltage stabilizing circuit is connected with the battery and is used for stabilizing the electric energy provided by the battery; the transient suppression diode is connected with the voltage stabilizing circuit and is used for protecting the circuit from transient overvoltage; and the energy storage unit is connected with the voltage stabilizing circuit and is used for storing electric energy. The microcontroller unit is connected with the energy storage unit and is used for controlling the operation of the whole power supply circuit; the driver is connected with the microcontroller unit; the motor is connected with the driver and is used for realizing the pushing action of the door handle; the external power supply interface is connected with the voltage stabilizing circuit and the energy storage unit, and the external power supply interface is used for providing external electric energy for the whole circuit when the battery is insufficient. The charging and protection circuit is connected with the external power supply interface and the battery and is used for ensuring the safe charging of the battery and preventing overcharging; and the shock rod control system is connected with the microcontroller unit and is used for receiving external input signals and controlling the function of the shock rod according to the control instruction of the microcontroller unit. The energy storage unit is a super capacitor.

2. A self-sustaining, concealed door handle power supply circuit according to claim 1, characterized in that: The energy storage unit is further connected with a voltage equalization and protection circuit, which is used for ensuring the voltage stability of the energy storage unit during the charging and discharging process and preventing overcharging or overdischarging.

3. A self-sustaining, concealed door handle power supply circuit according to claim 1, wherein: The driver is provided with a high-frequency high-voltage boosting circuit, which is used for boosting the electric energy provided by the battery or the super capacitor to a voltage range suitable for the operation of the motor.

4. A self-sustaining, concealed door handle power supply circuit according to claim 1, wherein: The microcontroller unit is further provided with an input interface, which is used for receiving external input signals and controlling the circuit according to the external input signals.

5. A self-sustaining, concealed door handle power supply circuit according to claim 1, wherein: The shock rod control system further comprises an output circuit, which is used for converting the control instruction into an electric signal and driving the shock rod to work.

6. A self-sustaining, concealed door handle power supply circuit according to claim 1, wherein: ​

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